AO Smith variable-speed pool pump display shows “LOC” and buttons do not respond.

Note: This is not a hardware failure but a control feature.

• Unlock keypad: Refer to the AO Smith manual for the specific model. Typically, press and hold the Stop and Speed Up buttons together for several seconds, or hold the Menu button until LOC clears.
• Confirm operation: Once unlocked, verify that speed and start/stop buttons respond normally.
• Disable auto-lock: If the pump has an auto-lock timer, adjust or disable it in the settings to prevent future confusion.